May 13, 2015 · The meaning of SILL is a horizontal piece (such as a timber) that forms the lowest member or one of the lowest members of a framework or supporting structure.

SILL definition: 1. a flat piece of wood, stone, etc. that forms the base of a window or door 2. a flat piece of…. Learn more.

Sill definition: a horizontal timber, block, or the like serving as a foundation of a wall, house, etc.. See examples of SILL used in a sentence.

What does the noun sill mean? There are 17 meanings listed in OED's entry for the noun sill. See ‘Meaning & use’ for definitions, usage, and quotation evidence. sill has developed meanings …

A sill is a shelf along the bottom edge of a window, either inside or outside a building.

Definition of sill noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Mar 10, 2024 · Sills provide structural support to the openings in a building’s walls, distributing the load around windows and doors to prevent deformation or collapse. They also serve as a base …

Define sill. sill synonyms, sill pronunciation, sill translation, English dictionary definition of sill. n. 1. a. A horizontal member that bears the upright portion of a frame. b. A windowsill. 2. Geology A …

the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway the sill of a window; the horizontal member at …

Jun 21, 2025 · A threshold or brink across the bottom of a canal lock for the gates to shut against. (anatomy) A raised area at the base of the nasal aperture in the skull. the nasal sill (military, …